https://docs.gomplate.ca/installing/
goのテンプレートエンジン
使い方
$ echo 'My voice is my {{.Env.THING}}. {{(datasource "vault").value}}' \
| docker run -i -e THING=passport -v /home/me/.vault-token:/root/.vault-token hairyhenderson/gomplate -d vault=vault:///secret/sneakers -f -
My voice is my passport. Verify me.